<template>
  <el-container class="home-container">
  <el-header>
    <div>
      <img src="../assets/heima.png" alt="">
      <span>电商后台管理系统</span>
    </div>
    <el-button type="info">退出</el-button>
  </el-header>
  <el-container>
    <el-aside :width="handle">
      <div @click="toogleCollapse">|||</div>
      <el-menu
        background-color="#333744"
        text-color="#fff"
        active-text-color="#409eff"
        unique-opened
        :collapse="isCollapse"
        :collapse-transition="isOpen"
        router
        :default-active="activePath">
        <!-- 一级菜单 -->
        <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
          <!-- 一级菜单模板区 -->
          <template slot="title">
            <i :class="iconObj[item.id]"></i>
            <span>{{item.authName}}</span>
          </template>
          <!-- 二级菜单 -->
          <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavAtate('/' + subItem.path)">
            <template slot="title">
            <i class="el-icon-menu"></i>
            <span>{{subItem.authName}}</span>
            </template>
          </el-menu-item>
        </el-submenu>
      </el-menu>
    </el-aside>
    <el-main>
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
export default {
  data () {
    return {
      menuList: [],
      iconObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      isOpen: false,
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    loginOut() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menuList = res.data
    },
    toogleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    saveNavAtate(activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  },
  computed: {
    handle() {
      return this.isCollapse ? '64px' : '200px'
    }
  }
}
</script>

<style lang="less" scoped>
  .home-container{
    height: 100%;
  }
  .el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0px;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div{
      display: flex;
      align-items: center;
    }
  }
  .el-aside{
    background-color: #333744;
    >div{
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
    }
  }
  .el-main{
    background-color: #eaedf1;
  }
  .iconfont{
    margin-right: 10px;
  }
  .el-menu{
    border-right: none;
  }
</style>
